Gaya APA

Sigl, O. et al (2000). An Estimate of Subsurface Settlement Trough Widht Parameter for G4 Material . New York: Taylor & Francis.

Gaya MLA

Sigl, O.. et al. "An Estimate of Subsurface Settlement Trough Widht Parameter for G4 Material". New York: Taylor & Francis, 2000. Text.